40351960 has 64 divisors (see below), whose sum is σ = 99701280. Its totient is φ = 14576640.

The previous prime is 40351957. The next prime is 40351967. The reversal of 40351960 is 6915304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40351967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128764 + ... + 129076.

Almost surely, 2^40351960 is an apocalyptic number.

40351960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40351960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49850640).

40351960 is an abundant number, since it is smaller than the sum of its proper divisors (59349320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40351960 is a wasteful number, since it uses less digits than its factorization.

40351960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 40351960 is about 6352.3192614981. The cubic root of 40351960 is about 342.9953335135.

It can be divided in two parts, 4035 and 1960, that added together give a palindrome (5995).

The spelling of 40351960 in words is "forty million, three hundred fifty-one thousand, nine hundred sixty".